A military vehicle of the US-led coalition forces in Afghanistan was blown up in the central Maidan Wardak province Saturday while a helicopter belonging to the coalition made an emergency landing in the south-eastern Paktia province, reported dpa.
The press office of the coalition troops in Bagram confirmed to Deutsche Presse-Agentur dpa that one of their convoys was hit by a roadside bomb in Maidan Wardak, but said the troops were not injured.
Witnesses said the vehicle was hit by a roadside bomb Saturday morning on the Kabul-Kandahar highway in Saidabad district.
The district chief of Saidabad, Fazl Rahman Muslim, said three civilians - two men and a woman - travelling in a car close to the convoy were wounded in the blast.
Taliban spokesman Zabihullah Mujahid claimed that four US troops were killed in the blast.
Three US soldiers were killed in a similar roadside attack and gunfire by the Taliban on Thursday in Maidan Wardak.
Elsewhere, the Taliban claimed to downed a US helicopter in the south-eastern Paktia province, with the coalition forces giving a different version of the incident.
Mujahid told dpa by phone that a US Chinook helicopter was brought down by machine-gun fire in Wazi Zadran district near a US military base on Saturday morning, killing all aboard.
However, coalition troops said in a statement that their helicopter made an emergency landing because of a technical problem, not hostile firing.
"A coalition helicopter made a hard landing in Paktya province today, due to mechanical issues. No coalition service members were killed. There were no reports of enemy fire," said the statement from Bagram.
Attacks on foreign troops have dramatically increased in the past two months. Over 40 foreign troops have been killed in June, making the month the deadliest for international forces in Afghanistan.